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( Nb Muriel.) I Q I. M. JONES.

PIPE NIPPLE HOLDER.

No. 289,419. Patented Dec] 4, 1883.

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gzi fwd/@W UNITED STATES PATENT prion.

IDVVAL M. JONES, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR OF ONE- HALF TO IRA WINSOR, OF SAME PLACE.

PIPE-NIPPLEHOLDER.

SPECIFICATION formingpart of Letters Patent No. 289,419, dated December 4, 1883.

Application filed June 11, 1883. (No model.)

To all whom, it may concern:

Be it known that I, IDWAL M. J ONES, a subject of the Queen of Great Britain, residing at Providence, in the county of Providenee and State of Rhode Island, have invented a new and useful Pipe-Nipple Holder, of which the following is a specification.

My invention relates to improvements in holders for holding what are known in the art as pipe-nipples, which are short pieces of pipe with screw-threads on each end; and the objects of my improvements are, first, to hold a pipe-nipple securely while it is having a screw-thread cut on its end; second, to facilitate securing said nipple to and releasing it from the holder. I attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure 1 is an elevated and sectional view of the holder, and Fig. 2 a View of a bushing to be used in the holder for small pipe-nipples.

The body A A of the holder has the part A constructed in the form of a hollow cylinder, inside of the end of which is cut a screwthread, and into which is screwed the nipple B, upon which is to be cut the screw'thread b. The movable block 0 is fitted to slide in side of the hollow cylinder A, having its outer end constructed in the form of a pointed wedge, with three or more edges extending from the portion that fits the cylinder to the point.

The wedge-b1ock 0 receives a longitudinal motion by means of the cam D, which, by the application to it of a hand-wrench, is made to revolve on the outside of the cylinder A and impinge against and move longitudinally the sliding cam E, which also is on the outside of the cylinder A,and which is connected to said wedge-block by means of the pin F, which passes through slots 0 c. The holding of the nipple B securely in the holder, after it has Y been screwed into the end of the hollow cylinder A. is accomplished by forcing the edges of the wedge-block 0 into the inside edge of said nipple by a partial rotation of the cam D. To release said wedge-block G frointhe nipple, the cam D is reversed. Thus the nipple, which is screwed into the end of the cylinderof the holder by the force of the hand above mentioned, which allows it to be readily unscrewed-from said holder. The bushing G, Fig. 2, is screwed into the hollow cylinder A when it is desired to construct a small-size nipple, such as will fit the thread h.

This holder is designed to be used either in a power-lathe or by hand.

My invention does not consist particularly in the use of the cams D E to move the wedgeblock 0, for any other similar mechanism can be used to move said blocksuch, for instance, as a screw-sleeve fitted to the outside of the cylinder A and connected to said wedge-block, will accomplish the same result as said cams; but my invention does consist of the use, in a pipe-nipple holder, of a wedge-block made to move by suitable. mechanism longitudinally inside of a hollow cylinder, the end of which is screw-threaded to receive a pipe-nipple,

which is held securely in a desired position by the edges of said wedge-block.

Having fully described my invention, what I desire to claim, and secure by Letters Patent,

1. The pipenipple holder consisting of the body A A and the cams D E, movable on the outside of the hollow part of the body or cylinder A, in combination with the longitudinallyrsliding wedge-block O, connected to the cam E by means of the pin F, which passes through the slots 0 o, substantially as and for the purpose set forth.

2. In a pipe-nipple holder, the wedge-block G, movable longitudinally by suitable mechanism, in combination with the hollow cylinder A, screw-threaded on the inside of its outer end, substantially as and for the purpose set forth.

IDWAL M. JONES. Witnesses:

IRA WINSOR, JOHN H. OROWELL. 

